Display screen or portion thereof with graphical user interface



The sole FIGURE is a front view of a display screen or portion thereof with graphical user interface showing my new design.

The broken lines in the FIGURE show portions of the display screen or portion thereof with graphical user interface which form no part of the claimed design.

The broken lines showing of the mobile terminal in the FIGURE is for environmental purposes only and forms no part of the claimed design. 

CLAIM I claim the ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 